Water Pollutants

Q. The Ganga Action Plan was launched in the year 1985. What is the main aim of the Ganga Action Plan?

1. To reduce the pollution levels in the river

2. To increase the utilisation of river water
3. To reduce the natural vegetation along the river
4. To increase industrialisation along the river banks.

Q.

Expand the abbreviation GAP

1. Governmental Agency for Pollution Control

2. Gross Assimilation by Photosynthesis

3. Ganga Action Plan

4. Governmental Agency for Animal Protection

Q. Which of the following is mainly responsible for the causes of water pollution?

1. Afforestation
2. Oil refineries
3. Paper factories
4. Both b and c

Q. What happens when phosphorus, nitrates, and detergents in water lead to an acceleration in the growth of algae?

1. Eutrophication
2. Biomagnification
3. Extinction
4. Biodegradation

Q. Presence of _______ in water bodies causes excessive growth of algae in water.

1. methane
2. DDT
3. CNT
4. coal

Q. Question 7
Which of the following is not true for fertilizers?

(a) They increase the yield.
(b) Their excessive use disturbs the balance of nutrients in soil.
(c) They are generally used in small quantity.
(d) They are environment friendly.

Q.

What is Ganga Action Plan?

Q. Minimata disease is a pollution-related disease, which is caused due to:

1. Release of human organic waste into drinking water
2. Release of industrial waste containing mercury into water containing fish and other aquatic animals
3. Accumulation of arsenic into atmosphere
4. Oil spills into sea

Q. Sarath complained of stomach pain when he came back from school. His mother took him to doctor in the evening. After the tests, he found the presence of blood cells in the urine. In this case, stomach pain is an example of ________ and presence of blood cells in urine is an example of_________.

1. sign, complaint
2. detection, symptom
3. sign, symptom
4. symptom, sign

Q. Harmful elements of E-waste includes which of the following elements?

1. Mercury
2. Cadmium
3. Lead
4. Gold

Q. Which of the following consequences can be caused by an oil spill?

1. Increase in aquatic vegetation
2. Increase in the amount of toxins
3. Increase in the amount of dissolved oxygen.
4. Increase in fish population

Q. The figure given below shows a situation of a pond situated near an oil palm estate.


What could be the possible reason for the death of the fish in the pond next to the oil palm estate?

1. The waste products given out by the plants.
2. The practice of crop rotation in the estate.
3. The use of biological control in the estate.
4. The use of chemical fertilisers in the estate.

Q. In a certain town, a factory discharges its chemical waste directly into a small lake. The water in this lake is then used by farmers for irrigation purpose. Which of the following changes will not be noted in this town?

1. The quality of water in the lake will decrease

2. The marine life in the lake will get seriously affected.

3. The people living nearby will suffer from water borne diseases.
4. The fertility of the lands irrigated by the lake water will increase.

Q.

Make a report on Ganga action plan

Q. The discharge of excessive fertilizers etc., into ponds is responsible for which of the following effects?

1. It increases the level of oxygen in the pond

2. It reduces the temperature of water in the pond.

3. It decreases the population of aquatic organisms

4. It makes the pond water toxic for algae

Q. Which of the following activities will help to sustain environmental balance?

1. A) i, iii and iv only
2. B) i, ii and iv only
3. C) ii and iv only
4. D) All of the above

Q. Sarath complained of stomach pain when he came back from school. His mother took him to doctor in the evening. After taking tests, he found the presence of blood cells in the urine. In this case stomach pain is an example of ________ and presence of blood cells in urine is an example of ________ .

1. sign, complaint
2. sign, symptom
3. symptom, sign
4. detection, symptom